water sampling

Scope of Work:
PennDOT was adding ramps to the major interchange that had not been included during the initial road construction. Neumeyer Environmental was contracted to perform several activities in support of this project including management of acid mine drainage, noise monitoring, and to provide miscellaneous environmental support.

It was anticipated based on the project design that mine seals would need to be breached as part of the construction. Discharge of the acid mine drainage was expected when this breach occurred that could affect the local environment and water courses. Neumeyer Environmental evaluated the site characteristics and installed a pump and treat system to manage the drainage. The system included a 450 linear foot ditch that included a dispersion system with a neutralizing agent to treat the drainage.

Neumeyer Environmental also performed noise monitoring during the non-standard work hour activities. The project was bounded by several residential neighborhoods that were subject to disturbance by the construction activities. Neumeyer Environmental established baseline noise levels and performed bi-weekly monitoring to ensure noise levels were maintained within acceptable limits.

Scope of Work:
Contaminated ground and surface water from a coal-tar retention basin threatened to leach into a nearby stream. The water was highly contaminated with organic compounds.

Neumeyer Environmental installed a groundwater leachate collection system and sheet pile cut-off wall to divert contaminated groundwater and prevent it from entering the adjacent stream. Neumeyer Environmental designed and built a french drain to carry water from behind the wall and transfer it into a sealed manhole. Submersible pumps were installed in the manhole to transfer the water to a wastewater treatment facility. Multiple level switches in the manhole activate pumps as water levels reach specified levels and convey the water to the on-site treatment plant. Pump controls, activation indicators, and flow monitors were remotely mounted in a control building for operator access and protection from the elements.

The new system captured and treated the contaminated water and prevented it from entering the stream.

Scope of Work:
Neumeyer Environmental was contracted to provide environmental management and construction support services for a subway connector tunnel beneath the Allegheny River from downtown Pittsburgh to the North Shore area. Neumeyer Environmental provided remediation services for abandoned asbestos-insulated steam pipes, lead compliance and abatement activities, impacted subsoils from previous historical activities, water quality discharge management and sampling and analysis in accordance with the Pennsylvania Management of Fill policy.

This project is a multi-year, multi-contract effort that is anticipated to span over five years.